Unlock instant, AI-driven research and patent intelligence for your innovation.

Oxygen detecting multilayer body, as well as oxygen detecting packaging material and oxygen absorber package using the same

a multi-layer body and oxygen detecting technology, applied in chemical indicators, instruments, chemical methods analysis, etc., can solve the problems of easy deterioration of light irradiation of oxidation-reduction dyes such as methylene blue, and achieve the effect of reducing the consumption of expensive oxygen detecting components, and preventing the crazing of the oxygen detecting layer

Active Publication Date: 2016-05-26
MITSUBISHI GAS CHEM CO INC
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is related to an oxygen detecting multilayer body that can easily detect changes in color caused by oxygen and prevent the oxygen detecting layer from cracking. By adding a spacer to the oxygen detecting multilayer body, crazing of the oxygen detecting layer can be prevented, even when the percentage of the surface area of the oxygen detecting layer with respect to the overall surface area of the oxygen detecting multilayer body is small to save costs.

Problems solved by technology

However, an oxidation-reduction dye such as methylene blue is easily deteriorated by light irradiation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oxygen detecting multilayer body, as well as oxygen detecting packaging material and oxygen absorber package using the same
  • Oxygen detecting multilayer body, as well as oxygen detecting packaging material and oxygen absorber package using the same
  • Oxygen detecting multilayer body, as well as oxygen detecting packaging material and oxygen absorber package using the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0054]As a transparent resin layer, a 12 μm-thick PET film (trade name: E5100, produced by Toyobo Co., Ltd.) was prepared. On the PET film, a 1 μm-thick urethane-base resin was layered as a first sealing layer by gravure printing (trade name: CLIOS Medium, produced by DIC Graphics Corporation). An ink for an oxygen detecting layer described below was printed in twice by gravure printing on the first sealing layer to form a 20 μm-thick oxygen detecting layer. The surface area of the oxygen detecting layer was set at 4% with respect to the surface area of the PET film. Further, on the transparent resin layer at a location where the first sealing layer is not formed, and at a position apart from the oxygen detecting layer, an ink for a spacer (gray (black+white), trade name: LAMIC SR) was printed by gravure printing to provide a 10 μm-thick spacer. The gap between the spacer and the oxygen detecting layer was 2 mm. The percentage of the surface area of the spacer was 85% with respect t...

example 2

[0056]An oxygen detecting multilayer body was produced identically with Example 1 except that the thickness of a spacer was changed to 20 μm.

example 3

[0057]An oxygen detecting multilayer body was produced identically with Example 1 except that the thickness of a spacer was changed to 5 μm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Fractionaaaaaaaaaa
Fractionaaaaaaaaaa
Login to View More

Abstract

An oxygen detecting multilayer body allows easy detection of a color change of an oxygen detecting layer, and prevention of crazing of an oxygen detecting layer. The oxygen detecting multilayer body includes a transparent resin layer, a heat seal layer, and an oxygen detecting layer containing an oxygen detecting component, placed occupying a part of a space between the transparent resin layer and the heat seal layer, wherein a spacer is placed to occupy at least a part of a space between the transparent resin layer and the heat seal layer, where the oxygen detecting layer is not provided, so as to make up a missing thickness of the oxygen detecting multilayer body, wherein the thickness of the oxygen detecting layer is from 0.5 to 40 μm, and the ratio of the thickness of the oxygen detecting layer to the thickness of the spacer is from 15:1 to 1:10.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field[0002]The present invention relates to an oxygen detecting multilayer body having an oxygen detecting function. More particularly, it relates to an oxygen detecting multilayer body, which can easily detect a color change of an oxygen detecting layer, and prevent an oxygen detecting layer from crazing. The invention further relates to an oxygen detecting packaging material using the oxygen detecting multilayer body and an oxygen absorber package packaged by the oxygen detecting packaging material.[0003]2. Background Art[0004]With respect to various articles which are susceptible to oxygen induced alteration or deterioration, such as a food, a beverage, a drug, a medical article, a cosmetic, a metal product, and an electronic product, an oxygen absorber is used for removing oxygen in a hermetic container keeping such an article, for purpose of storing the same for a long period while preventing oxidation deterioration.[0005]Among vari...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N31/22
CPCG01N31/225B65D79/02
Inventor SUGITO, KEN
Owner MITSUBISHI GAS CHEM CO INC